Heading for footer update and also dark and light mode

[jayeshpandey01]

1. about.html Footer Redesign: "Revamping the Footer: Enhance Navigation & Aesthetics" Description: Elevate user experience on about.html by redesigning the footer to mirror the intuitive layout and visual appeal of the index.html page. Improve navigation accessibility and aesthetic consistency across the website.

2. team.html Footer Enhancement & Dark/Light Mode Fix: "Refining the Footer & Resolving Dark/Light Mode Issues" Description: Optimize user interaction on team.html by refining the footer design akin to the index.html page while simultaneously addressing dark and light mode bugs. Ensure seamless toggling between modes for an immersive browsing experience.